Improvement in churns



J. C. SCRIBNER.

Churn.

Patented March 20, 1866.

.No UMLKNFMNI w y- Sy N MIN. Wurz M Klw UNITED STATES PATENT FFTCE,

JOHN C. SCRIBNER, OF HOLDERNESS, NEW HAMPSHIRE.

IMPROVEMENT IN CHURNS.

To all whom 'it may concern.-

Be it known that I, JOHN C. SORIBNER, of Holderness, in the county of Grafton and State of New Hampshire, have invented an Improved Churn 5 and I do hereby declare the same to be fully described in the following specification and represented in the accompanying drawings, of which- Figure l is a transverse section of it; Fig. 2, a top view ot' its tub; Fig. 3, a topview ot` its dasher; Fig. 4, a horizontal section of the upper bearing ot' the dasher-spindle.

In the drawings, A denotes the tub, and B the dasher, of the churn.

0n the bottom ot' the tub is a spiral or curved ridge, b, which encompasses the step 0 of the spindle el of the dasher, and unites at its outer extremity with an inclined wing or cleat, e, aftixed to and projectingfrom the inner curved surface of the tub, the whole being arranged as shown in Figs, l and 2. Three or any other suitable number of current breakers or ridges, fff, extend radially on the bottom ot' the tub and from the ridge b to the inner curved surface ot' the tub.

Thedasher B consists notonly ofan annulus, g, formed as shown in the drawings and supported by arms /L k 7L extending from a hub, t', fastened on the spindle d, but of a series ot' inclined wings, k k 7c, one of which is fastened to each of the said dasher-arms and extends into the space Z around the step of the spindle. The said spindle has a beveled pinion, m, carriedon it near its upper journal. This beveled pinion engages with a beveled gear, n, fixed on a horizontal shaft, o, which is supported in a puppet-head, 10, sustained by an arched bail that extends upward from and crosses the tub.

A crank, r, on the shaft o aEords a means ot' rotating the shaft in order to effect a revolution ot' the dasher. The journal at the upper end ot' the spindle enters a semi-tubular bearing, t, which projects from the bail and is surrounded by an annulus or plate, s, formed as shown in the drawings, and constitutes the other part of the bearing. This annulus is to be capable of being slid vertically on the part t suficiently to rise wholly above the spindle in order that the dasher may be removed from the tub, the annulus, when below the top of the spindle, serving to preserve the top of the spindle in its place in its bearings and step.

An annular cup, u, is xed on the spindle concentrically therewith and just beneath its beveled pinion and gear, the purpose of such cup being to catch any oil which may drop from the spindle bearing or gears and prevent such oil from falling into the tub or down upon its cover.

By revolving the dasher in the direction denoted by the arrow o, (marked thereon,) not only will a centrifugal movement be imparted to the cream when in the tub, but the mass of such liquid will be caused to impinge against the inclined wing or cleat e, which will direct it toward and into the space Z below the opening of the dasher. By the peculiar action of the wings ot' the dasher the cream will also be drawn into the space Z and thrown upward through the dasher. The auxiliary or radial ridges fff also serve to produce more or less agitation ofthe cream, as well as to arrest its rotary motion near the inner curved surface ot' the tub, thus facilitating the operation of churning the cream.

The churn so constructed has been found in practice to bc ot' great utility.

I claiml. The combination, as well as the arrangement, ofthe dasher-annulusg and its wings k with the spiral or curved ledge b and the inclined wing or cleat e, Iapplied to the bottom and inner curved surface of the tub, substantially as specified.

2. The combination, as well as the arrangement, ot' the series ot' auxiliary radial ridges ffj' with the curved ridge b, the inclined cleat e, and the annular dasher provided with wings, arranged as specied.

3. The combination of the sliding annulus s and semi-tubular bearing t, as made and applied together and to the bail, as specified.

JOHN U. SGRIBNER. Witnesses:

FRANKLIN SCRIBNER, ISAAC S. CoEFIN. 

